On Wed, 11 Nov 2020 14:11:52 +0100 Tobias Waldekranz wrote: > Ethertype DSA encodes exactly the same information in the DSA tag as > the non-ethertype variety. So refactor out the common parts and reuse > them for both protocols. > > This is ensures tag parsing and generation is always consistent across > all mv88e6xxx chips. > > While we are at it, explicitly deal with all possible CPU codes on > receive, making sure to set offload_fwd_mark as appropriate.
Uncharacteristically unreviewed for a DSA patch :) > + * > + * Regular DSA > + * ----------- > + * For untagged (in 802.1Q terms) packes, the swich will splice in the packes -> packets swich -> switch > + * tag between the SA and the ethertype of the original packet. Tagged > + * frames will instead have their outermost .1Q tag converted to a DSA > + * tag. It expects the same layout when receiving packets from the > + * CPU.
